The company reported global iron ore production of 49 million metric tons (mt) attributable (62 million mt on a 100% basis), which was up 12% on the second quarter of 2010 and up 17% on the first quarter of 2011. Iron ore shipments for the first half were 110 million mt (100% basis) from Australian and Canadian operations, which was 6 million mt lower than 2010’s first half following several cyclones, widespread flooding and a subsequent train derailment in the first quarter of 2011 in Western Australia.
Copper production was down 24% during the second quarter of 2010, primarily reflecting lower grades at Escondida and Kennecott Utah Copper.
Bauxite and alumina production improved by 8% and 6% on the rain-impacted first quarter as Queensland operations recovered. Bauxite production was up 11% compared with the same quarter of 2010 while alumina and aluminum production were flat.
The coal operations in Queensland have steadily recovered from the severe rains of the first quarter. Hail Creek was the last Rio Tinto mine to lift force majeure during May. Australian hard coking coal production was 9% higher than the first quarter but was down 26% on the second quarter of 2010 due to the heavy rains. Australian thermal coal production was 18% higher than the first quarter and 5% higher than the second quarter of 2010.